{"product_id":"usb-switch-and-multiplexer","title":"USB Switch and Multiplexer","description":"\u003cp\u003eThe USB Switch\/Multiplexer allows a USB device (or multiple devices if connected via a USB hub) to be switched between two hosts, or powered off. \u003cstrong\u003eThis newer 4-pin version\u003c\/strong\u003e adds a 3.3V output which can be used to toggle the state using switches without the need for external power.\u003c\/p\u003e\n\u003cp\u003eFor example, to test images on a Raspberry Pi you can use it to switch a USB flash drive between being the USB boot device on one Raspberry Pi and switching it to a second Raspberry Pi where you could write a new Raspberry Pi OS image, read\/write data etc. The switch can handle loads of up to \u003cstrong\u003e2.5A\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWhilst there are many USB 2 Multiplexers available to share a device between USB hosts, the folks at 8086 wanted a board they could easily connect and control from a Raspberry Pi or Arduino and allow power to the device to be turned off.\u003c\/p\u003e\n\u003cp\u003eTo control which host the USB port is connected to, set the OE and S (SELECT) pins high\/low as per the table below:\u003c\/p\u003e\n\u003ctable style=\"border-style: solid;\" border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth align=\"center\"\u003e!OE\u003c\/th\u003e\n\u003cth align=\"center\"\u003eSELECT\u003c\/th\u003e\n\u003cth align=\"left\"\u003eConnection\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003e0\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e0\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eUSB Type-A is connected to micro USB port A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003e0\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e1\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eUSB Type-A is connected to micro USB port B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003e1\u003c\/td\u003e\n\u003ctd align=\"center\"\u003eX\u003c\/td\u003e\n\u003ctd align=\"left\"\u003eDisconnected\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eBoth !OE and SELECT are pulled low on the board so that micro-USB port A is connected by default.\u003c\/p\u003e\n\u003cp\u003eThe pins can be controlled by 3.3v signals but they're also 5v tolerant. When switching between hosts A\/B both data and power for the USB device are connected to that host. Using only the SELECT pin you can switch the device between A\/B USB hosts.\u003c\/p\u003e\n\u003cp\u003eUsing only the !OE pin it can be used as a USB Switch to turn on\/off the USB device (disconnecting both power and data) if you need to power cycle\/power down a USB device for example to reset or save power.\u003c\/p\u003e\n\u003cp\u003eBy using both !OE and SELECT you have full control over which USB host the device is connected to and power it on\/off.\u003c\/p\u003e\n\u003cp\u003eThis newer 4-pin version of the USB Switch\/Multiplexer adds a 3.3 Volt output which can be used to toggle the state using switches without the need for external power.\u003c\/p\u003e","brand":"8086","offers":[{"title":"Default Title","offer_id":48620814303454,"sku":"imb1787258176485","price":4.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/0705\/9422\/files\/usb-switch-and-multiplexer_1.jpg?v=1787258184","url":"https:\/\/primewearfashion.shop\/products\/usb-switch-and-multiplexer","provider":"My Store","version":"1.0","type":"link"}